So, what can you do to counter-balance antibiotics? Many people with PCD have seen benefits from using probiotics. Proven probiotics products help restore normal gut flora, usually Lactobacillus or Bifidobacterium, (sometimes collectively called "acidophilus.") Most probiotic organisms occur in cultured milk products, such as yogurt with active cultures, acidophilus milk and kefir, as well as natural pickles and sauerkraut. Some consider Lactobacillus GG because research shows that it survives passage through the strong acid of the stomach and actually makes it into the intestinal tract where it's needed. Incidentally, probiotics have proven to be an effective treatment for diarrhea, lactose intolerance, and irritable bowel syndrome (IBS). Note: You should not take probiotics if you have had an allergic reaction to lactobacillus, acidophilus, bifidobacterium, or streptococcus thermophilus.